This may not be an issue, but maybe it is - Today I was running down wires while getting ready to install an autopilot
. While testing wires, noting what wires power which units, I noticed remnant current
in the power wires to the radar
after the radar
was turned off. Note: At no point had I turned on the power at the radar head
(nor the scanner), just the distribution panel switch for the radar.
It seems the radar holds some power, only a volt and a half, and feeds it back to the system.. but since the panel switch is off it has nowhere to go?
When I disconnected the radar power leads and left only the power wires from the panel and this did not happen.
When I reconnected the radar unit, turned it on and off again (at the panel), the current
was there again.
When I turned off the battery
power with the panel switch left on.. the mystery current vanished! It seemed like the current was able to escape, perhaps back to the batteries
So it seems that the radar itself holds a little bit of current which slowly leaks
back to the panel.
Is this possible? Is it a problem? The radar is an Raytheon
SL70, and it works fine.